alright ummmmm my answer would usually be jeanmarco but I think wewe want a zaidi canon couple maybe? Soooooo Goto and Hazama from samurai flamenco. ^^
Hmm, Kirito and Asuna may be "becoming" my all time favorite. Haven't finished the onyesha yet, so it's hard to compare with the classics, like Keichi and Belldandy au Maka and Usui.